Yes, I run a protien skimmer, rox carbon, phos guard and live rock in the sump. I run leds blues 10 hrs. whites 7 hours. This has been growing for quite a while now actually I think since I switched to leds not 100% sure though. Doesn't grow anywhere else in the tank except for the top of the overflow. I dose 60ml of 2 part everyday and 60ml of mg. 1x every 2 wks. My tank is sps dominate. I have lots of flow 2 @ 3/4" eductors fed by my return pump which is an OR6500 and 2 1600 gph pumps which alternate every 90 sec. not sure what other info I can give. My sg. is 1.026, cal is 480, alk 10 dkh and mg is 1400.